We've been using Krinner helical ground screws with good success. There are other similar brands available. I want to make sure that your term of anchors is the same as for screws. What we call helical ground anchors has a very different shape and wouldn't use them for solar. Chris

On 3/31/2016 2:38 PM, Chris Schaefer wrote:

Eric,

I’ve been researching this for almost two years now and finally decided to go with Zilla for a 40 module system. I have a heavy clay soil and nothing has been required for permitting or the AHJ. I will have to purchase their adapter to fit any pto post hole digger for about $500 but expect to make that back over a couple of projects. However the real issue came when I got the finalized numbers from them and a normal freight of around $400-600 was expected. Surprise, the cost was just shy of $1,500! Ouch. Well there goes the margin. Apparently because they provide their truss system as a pre-fab which makes them extremely difficult for the shipper and puts them in a higher freight class. So I asked that they provide an option with the truss broken down. We can do the assembly on site. This is something at this time they are unwilling to do without additional fees. While the customer service response has been timely it is obvious to me that this is something that they clearly do not want to do. Of course this has always been our albatross here on the east coast with most racking system being fabricated west of the Mississippi. So while I look forward to trying the helical pier until they come up with a breakdown option of their ground racking system I suggest you look elsewhere. I hope this helps. Let me know who else out there has a helical pier product.

Christopher

Chris Schaefer’s

SolarWindFX

/                    Tel/Fax 585-229-2083 or Cell 585-748-1870 /

/     5115 South Hill Road ~ Canandaigua New York 14424/

/www.solarandwindfx.com <http://www.solarandwindfx.com> ~ E-mail: ch...@solarandwindfx.com <mailto:ch...@solarandwindfx.com>/


        
        
        
        
        

                
        

        
        
        



Thomas Jefferson, the author of our great Constitution, once said, "democracy" will cease to exist when you take away from those who are willing to work and give to those who would not."

*From:*RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *e...@harvesthesun.com
*Sent:* Thursday, 31 March, 2016 13:19
*To:* RE-wrenches
*Cc:* ian.isb...@thatsbyers.com
*Subject:* [RE-wrenches] Helical Anchors for Ground-Mount

We're considering moving away from concrete footings where appropriate on GM projects. I am have not used any helical anchor systems and am curious about the efficiency of the helical anchor system in resi applications. Specifically, am I going to need soil compaction tests and/or geo survey with a P.G. stamp? What is the AHJ going to be looking for? As always, I appreciate any input!

Eric Stikes

Founding Director & CEO

Good Sun Solar, A CA non-profit corp.

www.goodsun.life <http://www.goodsun.life>

(530)798-3738



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